You could try advertising more, for example, by putting up signs around the neighborhood, posting about it on social media, or having people you know spread the word. You could also try doing it in a different neighborhood that might have friendlier people, or do it in a time and place where there's likely to be a lot of people walking around the area (e.g., near a church before the end of a mass).
Take good pictures. Some of the options below don’t require you to actually take the picture and sell the product, but for the ones that do, make sure you take a clear picture that makes your product stand out from the others. If you’re going to be taking a lot of pictures, set up a small “studio-like” area in your home with a backdrop and proper lighting to really make your pictures come across as professional. And of course, you’ll want a good camera too.
most of these site you have to be older then 18, so thus you couldn’t do any of them unless in your parents name, also you would need their credit card or pay pal account, which i don’t think any parent would let their kid have that account, best advice i can tell you is to try working in lawn care, good for you wanted to start working young, i know how hard it can be living in a small town with poor parents, mabye ask around for idea, beware of the net though, net jobs are mostly scams and they onces that aren’t you mostly have to be 18, mabye if you don’t need a permit in your town sell cookies, or your old toys in a yard sale. cleaning jobs, are good. good luck, i know what it like being you, work hard